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E. JAMES & E. HANDLEY.

ANNBALING FURNACE.

No, 264,296. Patented Sept. 12, 1882.

(No Model) 4 Sheets-Sheet 2.

E, JAMBS & E. HANDLEY.

ANNEALING FURNAGE. No. 264,296. Patented Sept. 12, 1882.

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I 1-]. JAMES & E. HANDLEY.

ANNEALING FURNAGB. No. 264,296. Patented Sept. 12, 1882.

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4 Sheets-Sheet 4.

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E. JAMES 81; IB. HANDLEY. ANNE ALING FURNACE Patented Sept. 12

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UNITED STATES PATENT FFIQE.

EDWARD JAMES, OF TIPTON, (NEAR BIRMINGHABL) COUNTY OF STAF- FORD, AND EDWIN HANDLEY, OF BIRMINGHAM, COUNTY OF WARWICK,

ENGLAND.

ANNEALlNG-FURNACE.

SPECIFICATION forming part of Letters Patent No. 264,296, dated September 12, 1882.

Application filed January 10, 1882. (No model.) Patented in England May 24, 1881, No. 2,252,

To all whom it may concern:

Be it known that we, EDWARD JAMES, tinplate-works manager, ot'Tipton, (nearBirmingham,) in the county of Stafl'ord, and EDWIN HANDLEY, metal merchant, of Birmingham, in the county of Warwick, England, have in vented Improvements in the Construction of Annealing-Furnaces, (t'or' which we have obtained a patent in Great Britain, No. 2,252, bearing date the 24th May, 1881,) of which the following is a specification.

In furnaces for open or close annealing we use a series of grate-rooms for the better equalization and diffusion of heat in the furnace and rendering combustion more complete, each grate being supplied by suitable means with superheated hydrogen, so as to rapidly increase the temperature of the furnace when required,

the supply of such being regulated in any ordinary way.

Our invention consists, further, in the general arrangement of the horizontal and vertical or upcast fines for causing and imparting to the boxes containing the articles requiring annealing a more equal distribution of heat.

in the drawings, Figure 1 is a front elevation of our improved furnace, showing in section the arrangement of combustion and hotair chambers through the broken-away portion. Fig. 2 is a transverse sectional elevation. Fig. 3 is a sectional plan view, and Fig. 4 is a side elevation, partly in section.

A is one of the series of rooms or combustion-chambers, which are separated by the walls a a, (shown in section in Fig. 1 and in dotted lines, Fig. 3,) the space between said walls forming heating-chambersA, which communicate with the air-chambers N below the gratebars by way of the apertures N, provided for that purpose in the dividing-walls a a. The pipes H are built into the front wall of the furnace and terminate in the heating-chambers A, and are for the purpose of conveying hydrogen to the heating-chambers A, from which it passes in a. highly-heated condition through the apertures N and up between the grate-bars totheburningfne]. ThesaidpipesHarepret'erably composed of conductive metal, so as to partially heat the hydrogen before reaching the chambers A.

B B are horizontal fines. (Seen in Figs. 2 and 4, and indicated by dotted lines in Fig. 3.) These said fines may be of any suitable size and shape, and run underneath the bed or siege of the furnace. In connection with these fines are several upcast flues or openings, (marked 0,) which are seen in Figs. 2, 3, and 4. The purpose and utility of these flues or openings is to facilitate the proper combustion of, and their tendency is to destroy, all noxious gases and smoke by the action of the heated air and flame which pass through them from the horizontal flues B B. The passage of such heated air and flame is indicated by the arrows seen in Figs. 2 and 4. In connection with the horizontal flues before mentioned is a flue, D, at the back of the furnace, which runs the whole length and height of the furnace, and which is shown in Figs. 2, 3, and 4, into which the fluesBallopen. Up this line (marked D) aportion of the heated air and flames rise and then escape through the airways and openings E, formed in the back wal],E,the passageot' the flame being indicated by the arrows. The flame and heated air, having escaped from the flueD and through theopeningsE,pass equally over the siege or bottom, and consequently over the whole of the interior of the furnace. The heat being thus equally distributed, the products of combustion then pass through the openings or airways F in the wall F, at the opposite side of the furnace, the bottom of the said openings being level with the bottom or siege of the furnace, the object being topull the heated air andflame down toward and over the boxes containing the articles to be annealed. The spent flame then enters the outcast flue G, Figs. 2 and 3, the arrows indicating its'passage from the flue G to the chimney K, Fig. 3, erected on either side of the furnace, the draft of the stack being regulated in the ordinary way.

A blower, H, is used to force hydrogen through the pipes I from any suitable source of supply, and its passage to the heating-pipes H and'chambers A is regulated by the cooks J.

2 seams In passing through the said pipes and heatingchamber the hydrogen becomes highly heated, and in that condition passes through the apertures N into the air-chambers N and upward through the burning fuel, and by promoting the better combustion thereof very rapidly increasing the temperature of the furnace, which may of course be as rapidly diminished by stopping or decreasing the supply of hydrogen, thus providing very efficient means for controlling the temperature of the furnace.

The rails K are for the purpose of receiving the wheels of the boxes containing the articles to be annealed.

The furnace is fed with its supplyof ordinary fuel through the doors L.

Theparticular construction and arrangement of the annealing-furnace itself is not herein claimed, as it will form the subject of a separate application for Letters Patent;

WVhat we claim, and desire to secure by Letters Patent, is-

1. In an annealing-furnace,the combination ofa series of combustion-chambers having horizontal flues leading therefrom, under the bottom of the said furnace, and gas heating-chambers, alternating therewith, with the gas heating-pipes H, conducting-pipes I, and the blower 11-, substantially as shown and described.

2. The series of heating-chambers having inlet-pipes terminating therein located between and extending below the combustion-chambers, and communicating with the air-chambers, as shown and described.

3. In a furnace, the combination and arrangement of combustion-chambers A, heating-chambers A, having apertures N, the aircha-mbers N, and horizontal flues B,as shown and described.

In testimony whereof we have signed our names in the presence of two subscribing witnesses.

EDWARD JAMES. EDWIN HANDLEY.

Witnesses:

ALFRED PERRY, J. F. BRAME. 

